Arbitration mode combining round weight and weight

Abstract

The invention discloses a wheel weight and weight combined arbitration mode and aims to meet the requirements of a bionic dynamic image sensor on short time delay and high precision of an arbiter in the field of high-speed imaging by adopting the wheel weight and weight combined arbitration mode. According to the arbitration mode, functions are achieved in an image sensor system through a statistical sorting module and a wheel right arbitration module, in the statistical sorting module, only pixel rows with many events can occupy a bus to output light intensity information, row requests are effective, tiny changes of scene light intensity information are ignored, the output data size is reduced, and time delay is reduced; and meanwhile, a reset signal rst is returned so that image information loss caused by drastic change of light intensity of the pixel unit within arbitration waiting time is avoided; and in the wheel right arbitration module, a fair output priority is given to each pixel row of the effective row request signal, and problems that the high-priority pixel row occupies an AER output bus for multiple times and the low-priority row cannot be output are solved.

Description

technical field [0001] The present invention relates to the field of image perception and processing, in particular, to the field of bionic image sensors when the image information in the scene changes at a high speed, that is, an arbitration mode combining wheel weight and weight. Background technique [0002] After a long-term evolution process, biological vision has a very superior visual information processing system. It is a fast, efficient, and fully functional visual information perception and processing system. Inspired by bionic neurology, people have studied bionic dynamic vision image sensors. In the field of high-speed imaging, if the image information in the external scene changes too quickly, that is, the activity of the pixel array is high, and multiple pixel units send request signals at the same time, the arbitration time will increase accordingly. At the same time, before receiving the confirmation signal from the arbiter, the requesting pixel cannot conti...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems existing in the prior art, the present invention proposes an arbitration mode combining wheel weight and weight, aiming at the problems of image information loss and high delay in the field of high-speed imaging, the main purpose is that when the light intensity changes drastically, during the arbitration process , using the arbitration mode combining wheel power and event concentration priority, considering the fairness and arbitration speed of the arbiter, solving the problem that high-priority pixel lines occupy the AER output bus for many times, and low-priority lines cannot be output, and optimize the arbiter at the same time , to increase the speed of the image sensor and reduce the delay

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